Re: mains filter (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 4 Nov 2007 17:00:00 EST
From: Mddeming@xxxxxxx
To: tesla@xxxxxxxxxx
Subject: Re: mains filter (fwd)

 
In a message dated 11/4/07 1:53:04 P.M. Eastern Standard Time,  
tesla@xxxxxxxxxx writes:

---------- Forwarded message ----------
Date: Sun, 04 Nov 2007  00:55:03 +0200
From: Tomas Stankevic  <Tomas.Stankevic@xxxxxxxx>
To: Tesla list  <tesla@xxxxxxxxxx>
Subject: mains filter

Hi, I want to make  mains filter to protect sensitive equipment (for 50mA NST 
TC). Is it  
possible to make one or I should buy? I found "Terry filter" in the  
list, is it suitable?

Tomas



Hi Tomas,
 
The primary function of the Terry filter is to keep HV transient spikes  from 
damaging the NST or similar-type transformer. It also helps to clean up  what 
goes back to the line from the TC primary circuit. A line filter on the LV  
side is also recommended, especially for any RF picked up inductively (or by an 
 errant strike) by the wires, etc on the inlet side of the NST. Depending on 
the  availability, it might be cheaper to buy a line filter for the amount of 
power  this unit will be drawing, than to build your own. Then there are those 
who take  great pride in building everything they can on their own, and cost 
or  convenience is not a factor. IMO, every such experience, whether or not 
the  result is inefficient is a learning experience you just can't get from a  
simulation.
 
 
Matt D. 
 
"The scars, burns and bruises earned by a tinkerer in the pursuit of  
knowledge are badges of honor that no amount money can  buy."



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